:root {
    --bhtk-primary: #121C27;
    --bhtk-primary-dark: #0A1119;
    --bhtk-secondary: #353E47;
    --bhtk-secondary-light: #414952;
    --bhtk-accent: #121C27;
    --bhtk-accent-dark: #0A1119;
    --bhtk-light: #F5F5F5;
    --bhtk-warm: #ECE6E1;
    --bhtk-white: #ffffff;
    --bhtk-text: #4B535D;
    --bhtk-text-muted: #6F767E;
    --bhtk-border: #DEDFE0;
    --bhtk-success: #5fbd74;
    --bhtk-danger: #B00E0E;
    --bhtk-warning: #FFBC7D;
    --bhtk-info: #353E47;
}

body {
    font-family: 'Roboto', system-ui, -apple-system, sans-serif;
    background-color: var(--bhtk-light);
    color: var(--bhtk-text);
}

/* Navbar */
.navbar-bhtk {
    background: var(--bhtk-white) !important;
    box-shadow: 0 1px 4px rgba(0,0,0,0.08);
    border-bottom: 1px solid var(--bhtk-border);
}
.navbar-bhtk .navbar-brand {
    color: var(--bhtk-primary-dark) !important;
    font-family: 'Roboto Slab', serif;
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: 0.5px;
}
.navbar-bhtk .nav-link {
    color: var(--bhtk-text) !important;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}
.navbar-bhtk .nav-link:hover,
.navbar-bhtk .nav-link.active {
    color: var(--bhtk-primary-dark) !important;
    font-weight: 600;
}
.navbar-bhtk .navbar-toggler {
    border-color: var(--bhtk-border);
}
.navbar-bhtk .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%234B535D' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Sidebar */
.sidebar {
    min-height: calc(100vh - 56px);
    background: var(--bhtk-white);
    border-right: 1px solid var(--bhtk-border);
    padding-top: 1rem;
    position: sticky;
    top: 56px;
    height: calc(100vh - 56px);
    overflow-y: auto;
}
.sidebar .nav-link {
    color: var(--bhtk-text);
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
    border-radius: 0.375rem;
    margin: 0.1rem 0.5rem;
}
.sidebar .nav-link:hover {
    background: var(--bhtk-light);
    color: var(--bhtk-primary);
}
.sidebar .nav-link.active {
    background: var(--bhtk-primary);
    color: var(--bhtk-white) !important;
}
.sidebar .nav-link i {
    width: 20px;
    margin-right: 8px;
    text-align: center;
}

/* Mobile offcanvas sidebar */
.sidebar-mobile .nav-link {
    color: var(--bhtk-text);
    padding: 0.75rem 1.25rem;
    font-size: 0.95rem;
    border-bottom: 1px solid var(--bhtk-light);
    transition: background 0.2s, color 0.2s;
}
.sidebar-mobile .nav-link:hover {
    background: var(--bhtk-light);
    color: var(--bhtk-primary);
}
.sidebar-mobile .nav-link.active {
    background: var(--bhtk-primary);
    color: var(--bhtk-white) !important;
    font-weight: 600;
}
.sidebar-mobile .nav-link i {
    width: 22px;
    margin-right: 10px;
    text-align: center;
}
#sidebarOffcanvas {
    width: 280px;
}
#sidebarOffcanvas .offcanvas-header {
    background: var(--bhtk-light);
}
#sidebarOffcanvas .offcanvas-title {
    font-family: 'Roboto Slab', serif;
    color: var(--bhtk-primary);
}

/* Cards */
.card {
    border: none;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    border-radius: 0.5rem;
}
.card-header {
    background: var(--bhtk-white);
    border-bottom: 1px solid var(--bhtk-border);
    font-weight: 600;
}

/* Stat cards */
.stat-card {
    border-left: 4px solid var(--bhtk-primary);
    transition: transform 0.2s;
}
.stat-card:hover {
    transform: translateY(-2px);
}
.stat-card .stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--bhtk-primary);
}
.stat-card .stat-label {
    color: var(--bhtk-text-muted);
    font-size: 0.85rem;
}
.stat-card.success { border-left-color: var(--bhtk-success); }
.stat-card.success .stat-number { color: var(--bhtk-success); }
.stat-card.warning { border-left-color: var(--bhtk-warning); }
.stat-card.warning .stat-number { color: var(--bhtk-warning); }
.stat-card.danger { border-left-color: var(--bhtk-danger); }
.stat-card.danger .stat-number { color: var(--bhtk-danger); }
.stat-card.info { border-left-color: var(--bhtk-info); }
.stat-card.info .stat-number { color: var(--bhtk-info); }

/* Tables */
.table th {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--bhtk-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-top: none;
}
.table td {
    vertical-align: middle;
    font-size: 0.9rem;
}

/* Buttons */
.btn-bhtk {
    background: var(--bhtk-primary);
    border-color: var(--bhtk-primary);
    color: var(--bhtk-white);
    font-weight: 500;
    border-radius: 6px;
    transition: all 0.2s;
}
.btn-bhtk:hover {
    background: var(--bhtk-primary-dark);
    border-color: var(--bhtk-primary-dark);
    color: var(--bhtk-white);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(10, 17, 25, 0.3);
}
.btn-gold {
    background: var(--bhtk-secondary);
    border-color: var(--bhtk-secondary);
    color: var(--bhtk-white);
    font-weight: 500;
}
.btn-gold:hover {
    background: var(--bhtk-secondary-light);
    border-color: var(--bhtk-secondary-light);
    color: var(--bhtk-white);
}

/* Public form */
.public-header {
    background: var(--bhtk-primary);
    color: var(--bhtk-white);
    padding: 2rem 0;
    text-align: center;
}
.public-header h1 {
    color: var(--bhtk-secondary);
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}
.public-header p {
    color: rgba(255,255,255,0.8);
    margin-bottom: 0;
}

.form-section {
    background: var(--bhtk-white);
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    padding: 1.5rem;
    margin-bottom: 1rem;
}
.form-section h5 {
    color: var(--bhtk-primary);
    border-bottom: 2px solid var(--bhtk-primary);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
    font-family: 'Roboto Slab', serif;
}

/* Login page */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bhtk-primary-dark);
    background-image: radial-gradient(ellipse at top, #1a2a3a 0%, var(--bhtk-primary-dark) 70%);
}
.login-card {
    max-width: 420px;
    width: 100%;
    background: var(--bhtk-white);
    border-radius: 0.75rem;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
    padding: 2rem;
}
.login-card .form-label {
    color: var(--bhtk-text);
    font-weight: 500;
}
.login-card .card-header {
    background: var(--bhtk-primary-dark);
    color: var(--bhtk-white);
    text-align: center;
    padding: 1.5rem;
    border-radius: 0.75rem 0.75rem 0 0 !important;
    font-family: 'Roboto Slab', serif;
}

/* Badge */
.badge { font-weight: 500; }

/* Calendar */
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    border: 1px solid var(--bhtk-border);
}
.calendar-grid .cal-header {
    background: var(--bhtk-primary-dark);
    color: var(--bhtk-white);
    text-align: center;
    padding: 8px 4px;
    font-weight: 600;
    font-size: 0.85rem;
    border: 1px solid var(--bhtk-primary-dark);
}
.calendar-day {
    min-height: 110px;
    border: 1px solid var(--bhtk-border);
    padding: 4px;
    position: relative;
    vertical-align: top;
}
.calendar-day .day-number {
    font-weight: 600;
    font-size: 0.85rem;
    display: inline-block;
    width: 24px;
    height: 24px;
    line-height: 24px;
    text-align: center;
    border-radius: 50%;
    margin-bottom: 2px;
}
.calendar-day.today .day-number {
    background: var(--bhtk-primary);
    color: var(--bhtk-white);
}
.calendar-day.today {
    background: #fffdf0;
}
.calendar-day.other-month {
    background: #f8f9fa;
}
.calendar-day.other-month .day-number {
    opacity: 0.4;
}
.calendar-event {
    font-size: 0.7rem;
    padding: 2px 5px;
    border-radius: 3px;
    margin-bottom: 2px;
    cursor: pointer;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-decoration: none;
    color: var(--bhtk-white);
}
.calendar-event:hover {
    opacity: 0.85;
    color: var(--bhtk-white);
}
.calendar-event.national {
    background: var(--bhtk-primary);
}
.calendar-event.regional {
    background: var(--bhtk-accent);
}
.calendar-nav {
    display: flex;
    align-items: center;
    gap: 12px;
}
.calendar-nav .month-label {
    font-size: 1.1rem;
    font-weight: 600;
    min-width: 180px;
    text-align: center;
}
@media (max-width: 768px) {
    .calendar-day {
        min-height: 60px;
        padding: 2px;
    }
    .calendar-day .day-number { font-size: 0.75rem; }
    .calendar-event { font-size: 0.6rem; padding: 1px 3px; }
    .calendar-grid .cal-header { font-size: 0.7rem; padding: 4px 2px; }
}

/* Partner profile */
.profile-header {
    background: linear-gradient(135deg, var(--bhtk-primary-dark) 0%, var(--bhtk-primary) 100%);
    color: var(--bhtk-white);
    padding: 2rem;
    border-radius: 0.5rem 0.5rem 0 0;
}
.profile-header h3 {
    color: var(--bhtk-white);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        display: none !important;
    }
    main.col-md-10 {
        max-width: 100% !important;
        flex: 0 0 100% !important;
        padding-left: 12px !important;
        padding-right: 12px !important;
    }
    .stat-card .stat-number {
        font-size: 1.4rem;
    }
    .card-body {
        padding: 0.75rem;
    }
    .table {
        font-size: 0.85rem;
    }
    .table th, .table td {
        padding: 0.4rem 0.5rem;
    }
    .btn-sm {
        font-size: 0.75rem;
        padding: 0.2rem 0.4rem;
    }
    h4 {
        font-size: 1.15rem;
    }
    .d-flex.justify-content-between {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    .navbar-bhtk .navbar-brand img {
        height: 36px !important;
    }
    /* Stack filter buttons on mobile */
    .card-body .d-flex.flex-wrap.gap-2 {
        justify-content: center;
    }
    .card-body .d-flex.flex-wrap.gap-2 .btn {
        font-size: 0.78rem;
        padding: 0.25rem 0.5rem;
    }
    /* Profile header responsive */
    .profile-header {
        padding: 1.25rem;
    }
    .profile-header h3 {
        font-size: 1.2rem;
    }
    /* Form rows stack on mobile */
    .row.g-3 > [class*="col-md"] {
        margin-bottom: 0.5rem;
    }
    /* Better looking badges on mobile */
    .badge {
        font-size: 0.72rem;
    }
}

/* Mobile partner cards */
.partner-card-mobile {
    transition: background 0.15s;
}
.partner-card-mobile:hover {
    background: var(--bhtk-light);
}
.partner-card-mobile:last-child {
    border-bottom: none !important;
}

/* Extra small screens */
@media (max-width: 480px) {
    .container-fluid, .container {
        padding-left: 8px;
        padding-right: 8px;
    }
    main.col-md-10 {
        padding-left: 8px !important;
        padding-right: 8px !important;
    }
    .table-responsive {
        font-size: 0.8rem;
    }
    .card-header {
        padding: 0.5rem 0.75rem;
    }
    .card-header h6 {
        font-size: 0.85rem;
    }
    .btn {
        font-size: 0.82rem;
    }
}

/* Terms modal */
.terms-content {
    max-height: 400px;
    overflow-y: auto;
    padding: 1rem;
    border: 1px solid var(--bhtk-border);
    border-radius: 0.375rem;
    background: var(--bhtk-light);
}

/* Headings */
h1, h2, h3, h4, h5, h6,
.card-header h6 {
    font-family: 'Roboto Slab', serif;
}

/* Footer */
footer {
    background: var(--bhtk-primary-dark) !important;
}
footer a {
    color: var(--bhtk-warm) !important;
}
footer a:hover {
    color: var(--bhtk-white) !important;
}

/* Sidebar active override */
.sidebar .nav-link.active {
    background: var(--bhtk-primary-dark);
    color: var(--bhtk-white) !important;
}
.sidebar .nav-link:hover {
    color: var(--bhtk-primary-dark);
}

/* Card header subtle accent */
.card-header {
    border-bottom: 2px solid var(--bhtk-border);
}

/* Badge accent */
.badge.bg-primary {
    background-color: var(--bhtk-primary-dark) !important;
}

/* Stat card accent */
.stat-card {
    border-left-color: var(--bhtk-primary);
}
.stat-card .stat-number {
    color: var(--bhtk-primary-dark);
}

/* Focus states */
.form-control:focus,
.form-select:focus {
    border-color: var(--bhtk-primary);
    box-shadow: 0 0 0 0.2rem rgba(18, 28, 39, 0.15);
}

/* Links */
a {
    color: var(--bhtk-primary);
}
a:hover {
    color: var(--bhtk-primary-dark);
}

/* btn-outline-primary override */
.btn-outline-primary {
    color: var(--bhtk-primary-dark);
    border-color: var(--bhtk-primary-dark);
}
.btn-outline-primary:hover {
    background: var(--bhtk-primary-dark);
    border-color: var(--bhtk-primary-dark);
    color: var(--bhtk-white);
}